Nano-Metal Curtain Coating for Heat Shielding With Light Transmission
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Solution Overview
Problem
Traditional curtains fail to effectively shield against heat transfer and provide comfortable indoor light, leading to increased energy consumption and carbon emissions during hot and cold weather.
Innovation Solution
A functional curtain fabric with an anhydrous coating layer is created by preprocessing a fabric substrate, followed by forming a nano-metal film using magnetron sputtering technology with silver and titanium targets, and subsequent anti-oxidation treatment to enhance heat shielding, light transmission, and antimicrobial properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If thick curtain fabrics are used to block sunlight and heat, then heat shielding performance is improved, but indoor light transmission deteriorates
Solution Approach 1:
The patent applies a thin film coating layer (5-50 nm thickness) of metal oxides or metallic materials on the fabric surface. This thin film provides effective heat reflection and blocking while maintaining high light transmission, resolving the contradiction between heat shielding and light transmission that plagues traditional thick curtains.
Solution Approach 2:
The patent uses composite material structures combining fabric substrate with functional coating layers of metal oxides (such as TiO2, ZnO, SiO2) or metallic materials (such as Ag, Al). This composite structure integrates the mechanical strength of fabric with the thermal reflection properties of the coating, achieving both heat shielding and light transmission.
2Ease of manufacture
If traditional curtain fabrics are used, then manufacturing simplicity is maintained, but heat shielding function deteriorates
Solution Approach 1:
The patent applies coating layers to the fabric substrate through processes such as sputtering, chemical vapor deposition, or sol-gel method during the manufacturing stage. This preliminary action integrates the heat shielding function into the fabric itself, eliminating the need for additional functional layers or complex assembly processes, thus maintaining manufacturing simplicity while adding heat shielding capability.
3Loss of energy
If metal coating is applied to enhance heat shielding, then heat reflection performance is improved, but oxidation resistance deteriorates
Solution Approach 1:
The patent employs multi-layer composite structures where a metallic layer (such as Ag or Al) providing heat reflection is combined with a protective metal oxide layer (such as TiO2, ZnO, or SiO2). The metal oxide layer acts as a barrier against oxidation while the metallic layer maintains heat reflection performance, thus resolving the contradiction between heat shielding and oxidation resistance.
Solution Approach 2:
The patent introduces metal oxide materials as intermediary protective layers between the metallic heat-reflecting layer and the external environment. These metal oxide layers serve as mediators that prevent direct contact between oxygen and the metallic layer, thereby preventing oxidation while allowing the metallic layer to maintain its heat reflection function.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The coated curtain fabric effectively blocks exterior sunlight and heat while allowing comfortable indoor light, offering antimicrobial and water-resistant properties, thereby reducing energy consumption and emissions.
Implementation Method 1
sputtering a metal target onto the fabric substrate by using magnetron sputtering technology, so as to form a nano-metal film on the fabric substrate
Implementation Method 2
the silver and titanium are successively sputtered onto the fabric substrate by using magnetron sputtering technology, so as to form a nano-metal film on the fabric substrate, thus it can serve as an effective heat shield against exterior sunlight while having good light transmission
Data Source
AI summary
Disclosed is a functional curtain fabric with an anhydrous coating layer. The functional curtain fabric is manufactured by method comprising step S1, preprocessing a fabric substrate; step S2, placing the preprocessed fabric substrate in step S1 into vacuum chamber of magnetron sputtering machine for coating: sputtering a metal onto the fabric substrate by using magnetron sputtering technology, so as to form a nano-metal film on the fabric substrate; and step S3, performing anti-oxidation treatment on the fabric substrate covered with the nano-metal film. The functional curtain fabric with an anhydrous coating layer can serve as an effective heat shield against exterior sunlight while having good light transmission. In addition, the functional curtain fabric with an anhydrous coating layer has good antimicrobial properties due to use of a metal coating of silver and titanium, and also has a degree of water resistance due to the nano-metal layer of silver and titanium.